Reliability and validity

Question 1

Validity

Answer 1

A test is said to be valid if it measures what it claims to measure

Question 2

Internal validity

Answer 2

Did the manipulation of the independent variable really cause the change in the dependent variable

Question 3

Predictive validity

Answer 3

Does the test predict later performance on a related criterion

Question 4

Concurrent validity

Answer 4

Do the results relate to an existing similar measure

Question 5

Construct validity

Answer 5

Does the test relate to underlying theoretical concepts

Question 6

Face validity

Answer 6

Does the test appear to test what it aims to test

Question 7

Ecological validity

Answer 7

Do lab based results generalise to the real world

Question 8

Reliability

Answer 8

A measure of whether a test would give the same results as if it was administered to the same sample at 2 different times

Question 9

Bland Altman plot

Answer 9

Looks at the mean of the 2 numbers and plots that against the difference between 2 numbers